.test {
  overflow: scroll;
  .transitionBox {
    width: 20px;
    height: 20px;
    background: red;
    transition: all ease-in 2s;
    &:hover {
      width: 200px;
    }
  }
  .box {
    width: 300px;
    height: 50px;
    background: green;
    line-height: 50px;
    text-align: center;
    color: red;
    font-size: 12px;
    position: relative;
    &::after{
      content: '';
      position: absolute;
      display: block;
      top: 0;
      right: 0;
      width: 20px;
      height: 30px;
      background: red;
    }
    &::before{
      content: '';
      position: absolute;
      display: block;
      top: 0;
      right: left;
      width: 20px;
      height: 30px;
      background: red;
    }
  }
  .bottom-btn {
    width: 20px;
  }
  .wrap-box {
    .box {
      width: 50px;
      height: 50px;
      background: blueviolet;
    }
  }

  .backgroundBox {
    background: #24da5c;
    width: 200px;
    height: 50px;
  }

  .backgroundColorBox {
    background-color: red;
    width: 200px;
    height: 50px;
  }
  .backgroundRgbaBox {
    background: rgba(26, 26, 26, 0.5);
    width: 200px;
    height: 50px;
  }
  .backgroundRgbBox{
    background: rgb(26, 26, 26);
    width: 200px;
    height: 50px;
  }
  .backgroundImageBox {
    background:
    url('https://img3.dian.so/lhc/2023/11/29/1029w_576h_BB8F71701249718.png')
    no-repeat;
    width: 200px;
    height: 50px;
  }

  .backgroundImagepositionBox {
    background: #777777 url('https://www.baidu.com/img/PCtm_d9c8750bed0b3c7d089fa7d55720d6cf.png') no-repeat right top / contain fixed;
    width: 200px;
    height: 50px;
  }

  .backgroundImageSizeBox {
    background: #777777 url('https://www.baidu.com/img/PCtm_d9c8750bed0b3c7d089fa7d55720d6cf.png') no-repeat right top / 80% 70%;
    width: 200px;
    height: 50px;
  }
  .backgroundImageSizeNumberBox {
    background: #777777 url('https://www.baidu.com/img/PCtm_d9c8750bed0b3c7d089fa7d55720d6cf.png') no-repeat 87% / 30%;
    width: 200px;
    height: 50px;
  }
  .backgroundImageOnlySizeBox {
    background: #777777 url('https://www.baidu.com/img/PCtm_d9c8750bed0b3c7d089fa7d55720d6cf.png') no-repeat 87%;
    width: 200px;
    height: 50px;
  }

  .backgroundImageOnlyPosBox {
    background: #777777 url('https://www.baidu.com/img/PCtm_d9c8750bed0b3c7d089fa7d55720d6cf.png') no-repeat 87% 30%;
    width: 200px;
    height: 50px;
  }

  .backgroundImageLinearBox {
    width: 200px;
    height: 50px;
    background:
    linear-gradient(
      180deg,
      #1BE37B 0%,
      rgba(237, 247, 250, 0) 100%
    );
  }
  .tag_active {
    font-size: 32px;
    color: #B0B0B0;
    margin-right: 68px;
    padding-bottom: 8px;
    text-align: center;
    /* &.active {
      color: #24DA5C;
      border-bottom: 6px solid #24DA5C;
      border-radius: 3px;
    } */

    &:nth-child(n + 1) {
      background-color: red;
    }
    .n-1 {
      background: #1BE37B;
    }
  }
  .borderBox {
    border: 10px solid red;
    width: 200px;
    height: 50px;
    background: green;
    margin-bottom: 2px;
  }
  .borderTopBox {
    border-top: 10px solid green;
    width: 200px;
    height: 50px;
    background: red;
    margin-bottom: 2px;
  }
  .borderRightBox {
    border-right: 10px solid red;
    width: 200px;
    height: 50px;
    background: green;
    margin-bottom: 2px;
  }
  .borderBottomBox {
    border-bottom: 10px solid green;
    width: 200px;
    height: 50px;
    background: red;
    margin-bottom: 2px;
  }

  .borderLeftBox {
    border-left: 10px solid red;
    width: 200px;
    height: 50px;
    background: green;
    margin-bottom: 2px;
  }

  .filterImg {
    width: 100%;
    height: 100%;
  }
  
  .filterBlur {
    width: 200px;
    height: 50px;
    filter: blur(4px);
  }
  .filterBrightness {
    width: 200px;
    height: 50px;
    filter: brightness(.5);
  }
  .filterContrast {
    width: 200px;
    height: 50px;
    filter: contrast(.5);
  }
  .filterDropShadow {
    width: 200px;
    height: 50px;
    filter: drop-shadow(0 1px 2px rgb(0 0 0 / 0.9));
  }
  .filterGrayscale {
    width: 200px;
    height: 50px;
    filter: grayscale(100%);
  }
  .filterHueRotate {
    width: 200px;
    height: 50px;
    filter: hue-rotate(15deg);
  }
  .filterInvert {
    width: 200px;
    height: 50px;
    filter: invert(100%);
  }
  .filterSaturate {
    width: 200px;
    height: 50px;
    filter: saturate(2);
  }
  .filterSepia {
    width: 200px;
    height: 50px;
    filter: sepia(100%);
  }

  .transformScaleBox {
    width: 200px;
    height: 50px;
    background: green;
    margin-bottom: 2px;
    transform: scale(0.5);
  }

  .transformSkewBox {
    width: 200px;
    height: 50px;
    background: red;
    margin-bottom: 2px;
    transform: skew(20deg);
  }
  .transformTranslateBox {
    width: 200px;
    height: 50px;
    background: green;
    margin-bottom: 2px;
    transform: translate(10px, 20px);
  }
  .transformBlendBox {
    width: 200px;
    height: 50px;
    background: red;
    margin-bottom: 2px;
    transform: translate(10px, 20px) rotate(45deg) scale(1.2);
  }
  .animationBox {
    width: 200px;
    height: 50px;
    background: green;
    animation: spin 1s linear infinite;
  }
}


@media (min-width: 640px) { 
  .box {
    color: blue;
    font-size: 20px;
    width: 400px;
  }
}
@media (min-width: 1024px) { 
  .box {
    color: yellow;
    font-size: 30px;
    width: 500px;
  }
 }

@media (min-width: 1280px) { 
  .test {
    .box {
      color: pink;
      font-size: 40px;
      width: 600px;
      &::after {
        background: blue;
      }
      &::before {
        background: blue;
      }
    }
  
    /* .tag_active {
      &.active {
        border-bottom: 6px solid red;
      }
    } */
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@font-face {
  src: "xxx";
  font-family: "xxx";
}